docs: fix redundant "example" in link to example

Signed-off-by: Paul Osborne <[email protected]>

Author: posborne

README.md

@@ -18,7 +18,7 @@ Example/API
 
 The source includes an example of using the library to talk to a Wii
 Nunchuck (which has an i2c interface).
-[Go View the Example Example](https://github.com/rust-embedded/rust-i2cdev/blob/master/examples/nunchuck.rs).
+[Go View the Example](https://github.com/rust-embedded/rust-i2cdev/blob/master/examples/nunchuck.rs).
 
 Here's a real quick example showing the guts of how you create a
 device and start talking to it...  This device only requires basic